Sorry what I want to know:
How does the 1Mb premium vs. 2Mb uncapped perform ?
As in which one would you choose… Do have you experience with both ?
I can’t tell you about those, but I’m on 4mb uncapped premium, and I’m very happy with it… except for when I hit the ~400gb threshold and get throttled for a day. 
It occasionally allows bursting up to my full 10mb line speed.
the question is INgeon , what are you planning to use your line for ? online gaming only (1Mb) if you plan to download a lot then (2Mb)
the big difference is the premium is more about unthrottled traffic , ie online gaming and stability in your conneciton . the uncapped is more for lots of downloads
I’m running on a 6Mb uncapped unthrottled connection is it’s wonderful 